prince william and we kate, are expecting a baby. isn't just a first >>> this is the news royal watchers have been expecting since the i dos. prince william and his wife kate are expecting a baby. >> awww. but the child isn't just a first for the duke and duchess. cbs reporter tina kraus explains the tiny royal could be a trailblazer for the entire family. >> reporter: prince william left a london hospital where he spent the day at his wife's side. palace officials confirmed the duchess of cambridge is almost 12 weeks pregnant. she is being treated for a severe form of morning sickness. but news a baby is on the way is cheering up kate's hometown fans. >> wow, what a thing for the country and the world really because these royals are our future. >> reporter: just days ago she was playing hockey in heels at the elementary school she attended. last week the duke and duchess received their first baby visit on a visit to cambridge. will and kate made no secret about their desire to start a family even before their royal wedding a year an